Course, if you can tough it out (might be worth it to avoid shelling out so much money), the AAO will still do video-editing (just not as fast, and you will certainly need some kind of external HD if you want to work with LARGE files).
Aside from the programs mentioned above, see if you can install kmediagrab. It's a handy, reasonably user-friendly tool that can convert many [weird] video formats to more mainstream ones. Once converted, then you can use one of the aforementioned programs to edit it (might also add kdenlive since it reminds me a bit of iMovie).